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Old 08-31-2012, 11:38 PM   #43
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Originally Posted by Kabigon View Post
The algorithm for pre-selecting the next gear is not quite so simple.

For example, if you are in 5th gear, 6th gear will not be pre-selected until you hit ~74 MPH.

Gear selection (for the next gear) often takes place at the time of the upshift.
You might want to let Ford know so that they can update their service manual:

Section 307-01 Automatic Transmission > Description and Operation > System Operation:

"Control Strategies

Operating principle of the transmission.

In this transmission, the use of a dry double clutch in conjunction with an electromechanical control system means that two gears (transmission ratios) are engaged at the same time.

One of the multi-plate clutches is engaged in driving mode, the other is already preselected when approaching the next gearshift with the clutch open.

Depending on the position of the accelerator pedal and the demand issued by the driver, the clutch of the previously activated gear is opened, while at the same time the clutch of the pre-selected gear is closed. As a result of this overlap in clutching, only minimal losses in tractive force are encountered during gearshifts."
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